Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 343 · 40 questions

Remember (Sense, send, store, show): IoT device = an everyday thing that shares data over the internet (usually Wi-Fi and an app). Data flow: sensor → board → Wi-Fi → cloud → app (and commands back to an actuator). Readings sent = total time ÷ time between readings, in the same units.

1. 1.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a smart energy meter (d) a wind-up clock
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the cloud stores it
3. 3.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
4. 4.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
7. 7.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) Wi-Fi (c) phone app (d) microcontroller
9. 9.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
10. 10.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
12. 12.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) sensor (c) cloud server (d) actuator
13. 13.🌐 In an IoT system, which part measures the real world? (a) sensor (b) microcontroller (c) actuator (d) phone app
14. 14.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
17. 17.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
18. 18.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
19. 19.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
20. 20.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the board reads it (c) the sensor measures (d) it is sent by Wi-Fi
21. 21.What does the cloud server do? (a) shows data to you (b) stores data online (c) measures the real world (d) carries the data
22. 22.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) sensor (c) phone app (d) cloud server
25. 25.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
26. 26.What does the sensor do? (a) shows data to you (b) stores data online (c) reads values, decides (d) measures the real world
27. 27.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
28. 28.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain table fan (c) a plain wall switch (d) a wind-up clock
29. 29.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a plain table fan (d) a fitness band with app
30. 30.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
31. 31.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
33. 33.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
34. 34.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
35. 35.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) acts on a command (d) measures the real world
36. 36.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a paper calendar
37. 37.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a Wi-Fi smart plug (d) a wind-up clock
38. 38.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a Wi-Fi smart plug (d) a plain wall switch
39. 39.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a smart energy meter (d) an app-controlled bulb
40. 40.🌐 In an IoT system, which part carries the data? (a) actuator (b) cloud server (c) Wi-Fi (d) phone app

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